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snow_lady [41]
4 years ago
11

A researcher is using a regular, two-tailed test with α = .05 to determine whether a non-zero correlation exists in the populati

on. A sample of n = 25 individuals is obtained and produces a correlation of r = 0.21. The null hypothesis states that there is no correlation in the population. What is the t statistic, and what is the conclusion about the null hypothesis?
a. 1.03, the null hypothesis is rejected.

b. 1.03, the null hypothesis is not rejected.

c. 4.202, the null hypothesis is rejected.

d. 4.202, the null hypothesis is not rejected.
Mathematics
1 answer:
beks73 [17]4 years ago
7 0

Answer:

Step-by-step explanation:

Download docx
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antiseptic1488 [7]
Your answer would be 74 if you are looking for the answer.
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Aliun [14]

Answer:

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Step-by-step explanation:

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4 years ago
A population of 100 frogs increases at an annual rate of 22%. How many frogs will there be in 5 years? Write an expression to re
gizmo_the_mogwai [7]
Exponential growth of the form:

F=Ar^t

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F(5)=100(1.22)^5

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F(5)=270 to the nearest frog...

....

1.22=r^12

r=1.22^(1/12)

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F=100(1.22^(t/12))  now it will produce monthly populations...

Say we did the same as before but instead of 5 years you have 60 months...

F(60)=100(1.22^(60/12))

F(60)=270 to the nearest frog... :P 
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4 years ago
Anybody got an answer ?
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Sixty two is your answer you’re adding all the sides
6 0
3 years ago
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